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06.01.2008 at 10:01PM PDT, ID: 23448936
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Attachment Details

Keypress issues

Asked by nikdonovanau in JavaScript

Tags: javascript, IE

Hi , the following code moves a draggable Div (key_obj_id) using the arrow keys on the keyboard

How do i stop the browser from executing the default bahaviour of the arrow keys ? which is move the scroll bar.

preventDefault seems to be the function for IE..still confused on how to use it


Also i found this article which does exactly what i want but im not sure how to apply it to my code http://www.quirksmode.org/js/dragdrop.htmlStart Free Trial 
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function KeyCheck(key_obj_id)
{
   var KeyID = event.keyCode;
   switch(KeyID)
   {
       case 37:
      document.info.KeyName.value = "Arrow Left"+key_obj_id;
	 var current_left = window.document.getElementById(key_obj_id).style.left;
	 current_left = (current_left.replace(/px/, ""));
	 current_left = parseInt(current_left)
	 new_left = current_left -1;
      window.document.getElementById(key_obj_id).style.left = new_left;
	  update_db(key_obj_id);
      break;
	  case 38:
      document.info.KeyName.value = "Arrow Up"+key_obj_id;
	 var current_top = window.document.getElementById(key_obj_id).style.top;
	 current_top = (current_top.replace(/px/, ""));
	 current_top = parseInt(current_top)
	 new_top = current_top -1;
      window.document.getElementById(key_obj_id).style.top = new_top;
	   update_db(key_obj_id);
      break;
	  case 39:
       document.info.KeyName.value = "Arrow Right"+key_obj_id;
	 var current_right = window.document.getElementById(key_obj_id).style.left;
	 current_right = (current_right.replace(/px/, ""));
	 current_right = parseInt(current_right)
	 new_right = current_right +1;
      window.document.getElementById(key_obj_id).style.left = new_right;
	   update_db(key_obj_id);
      break;
	  case 40:
        document.info.KeyName.value = "Arrow Down"+key_obj_id;
	 var current_bottom = window.document.getElementById(key_obj_id).style.top;
	 current_bottom = (current_bottom.replace(/px/, ""));
	 current_bottom = parseInt(current_bottom)
	 new_bottom = current_bottom +1;
	   window.document.getElementById(key_obj_id).style.top = new_bottom;
	    update_db(key_obj_id);
      break;   }
}
</script>
 
Keywords: Keypress issues
Title
1 show hide div
2 keyPress method & keyPress ASCII co…
3 keyboard arrow keys function
4 KeyPress
5 Open a new URL from a div
6 Keypressed
 
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[+][-]06.02.2008 at 12:08AM PDT, ID: 21690066

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About this solution

Zone: JavaScript
Tags: javascript, IE
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Solution Provided By: mplungjan
Participating Experts: 2
Solution Grade: A
 
 
[+][-]06.02.2008 at 02:22AM PDT, ID: 21690544

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[+][-]06.02.2008 at 03:01AM PDT, ID: 21690692

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[+][-]06.02.2008 at 05:05AM PDT, ID: 21691216

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[+][-]06.03.2008 at 07:43AM PDT, ID: 21700878

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[+][-]06.07.2008 at 07:19PM PDT, ID: 21737313

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[+][-]06.10.2008 at 11:47PM PDT, ID: 21757426

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